15344420232 has 64 divisors (see below), whose sum is σ = 39391531200. Its totient is φ = 4978012160.

The previous prime is 15344420219. The next prime is 15344420233. The reversal of 15344420232 is 23202444351.

It is a self number, because there is not a number n which added to its sum of digits gives 15344420232.

It is not an unprimeable number, because it can be changed into a prime (15344420233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393688 + ... + 430904.

It is an arithmetic number, because the mean of its divisors is an integer number (615492675).

Almost surely, 2^15344420232 is an apocalyptic number.

15344420232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15344420232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19695765600).

15344420232 is an abundant number, since it is smaller than the sum of its proper divisors (24047110968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15344420232 is a wasteful number, since it uses less digits than its factorization.

15344420232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37686 (or 37682 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 15344420232 its reverse (23202444351), we get a palindrome (38546864583).

The spelling of 15344420232 in words is "fifteen billion, three hundred forty-four million, four hundred twenty thousand, two hundred thirty-two".